"A letter introduced in the Portland trial indicated that the private investigator, Eugene M. Ingram, obtained permission from a Los Angeles police officer to invade Armstrong's privacy to tape the conversations.
“Investigation under way.
"Los Angeles Police Chief Daryl Gates said earlier this week that the officer was not authorized to sign the consent letter and that an internal investigation is under way. Gates added that it was highly unlikely that the department cooperated with Ingram, who was fired as a police officer in 1981."
— The Oregonian 04-25-1985
See also:
Rodriguez Authorization 11-13-1984
Rodriguez Authorization 11-28-1984
Public Announcement by Los Angeles Police Chief 04-23-1985